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the Latin name of the lentil (a seed of a lentil plant), because a double-convex lens is lentil-shaped. The lentil also gives its name to a geometric...

1975 and in it the field lens is a double concave/ double convex achromatic doublet and the eye lens is a double convex singlet. The reverse Kellner provides...

prisoners allows the game to continue. Traditional Japanese stones are double-convex, and made of clamshell (white) and slate (black). The classic slate...

two optical surfaces. A lens is biconvex (or double convex, or just convex) if both surfaces are convex. If both surfaces have the same radius of curvature...

Convex Computer Corporation was a company that developed, manufactured and marketed vector minisupercomputers and supercomputers for small-to-medium-sized...

possibility is that Fabritius designed the picture with the aid of a double-convex lens, as these may create distorted proportions in a pattern akin to...

1611. In it, Kepler set out the theoretical basis of double-convex converging lenses and double-concave diverging lenses—and how they are combined to...

facing the doublet. An RKE eyepiece has an achromatic field lens and double convex eye lens, a reversed adaptation of the Kellner eyepiece, with its lens...

popular style. The Chinese style stones are normally flat underneath and convex on top. This style is less common outside of China. Flat bottom stones can...

Convex and Concave is a lithograph print by the Dutch artist M. C. Escher, first printed in March 1955. It depicts an ornate architectural structure with...

In astronomy, a double planet (also binary planet) is a binary satellite system where both objects are planets, or planetary-mass objects, and whose joint...

icosahedron" generally refers to the convex variety, while the nonconvex form is called a great icosahedron. The convex regular icosahedron is usually referred...

Araucariaceae. The specific epithet lenticula is from the Latin meaning "like a double-convex lens", referring to the leaf shape. Agathis lenticula grows as a tree...

Niépce, Henry Fox Talbot, and Louis Daguerre all used simple single-element convex lenses.: 55  These lenses were found lacking. Simple lenses could not focus...

rather than in its analysis. An example is Chan's algorithm for computing convex hulls, which performs a sequence of computations using test values hi = 22i...

following instrumentalities, to wit: a neck approximately in the form of a double convex in cross section…" a plurality of frets secured to said neck, said frets...

about 1700 BC portrays warriors armed with bows of both simple and double-convex designs. During the classical Greek era Cretan archers carried composite...

The polynomially convex hull contains the holomorphically convex hull. The domain G {\displaystyle G} is called holomorphically convex if for every compact...

possible for the optimal double lattice packing density of any convex set, and more generally for the optimal packing density of any convex set. The United Kingdom...

points contained in the respective polygons. Such a duoprism is convex if both bases are convex, and is bounded by prismatic cells. Four-dimensional duoprisms...